Rapp, S and Härle, V and Bolay, H and Hangleiter, A and Scholz, F and Limmer, W and Vasiliadou, E and Grambow, P and Weiss, Dieter (1995) Evaluation of the Effective Hole masses in Pseudomorphic Compressively Strained GaxIn1-xAs/InP Quantum Wells. Applied Physics Letters 67, p. 67.
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The valance band structure of metalorganic vapor phase epitaxy (MOVPE) grown strained GaxIn1 xAs/InP single quantum well structures is experimentally verified by the determination of the effective in-plane hole masses. The masses are obtained by performing magnetotransport experiments. Mobilities up to 8700 cm2/V s for gallium content of x=0.3 were reached. The effective heavy hole masses of compressively strained GaInAs are drastically reduced compared to bulk material in excellent agreement to calculations using the k · p-perturbation theory, whereas the masses of the uppermost valence band of tensile strained material appear to be rather high. Consequently, no experimental determination was possible in the latter case. A precise analysis of the Shubnikovde Haas oscillation patterns of compressively strained quantum wells shows a spin splitting of the uppermost heavy hole band, containing two different effective masses.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 15:20|
|Last Modified:||05 Aug 2009 15:57|
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